JPS5918302A - Combustion apparatus with catalyst type heat exchanger for heat recovery - Google Patents
Combustion apparatus with catalyst type heat exchanger for heat recoveryInfo
- Publication number
- JPS5918302A JPS5918302A JP58114458A JP11445883A JPS5918302A JP S5918302 A JPS5918302 A JP S5918302A JP 58114458 A JP58114458 A JP 58114458A JP 11445883 A JP11445883 A JP 11445883A JP S5918302 A JPS5918302 A JP S5918302A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- combustion
- heat recovery
- heat
- catalytic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Incineration Of Waste (AREA)
- Catalysts (AREA)
- Gas Burners (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、燃焼装置に関するものであり、特には熱回収
用熱交換器を備える一つ以上のガス通路を有するボイラ
のような燃焼装置に関し、この場合熱回収用熱交換器は
ガス状燃焼生成物を酸化しそしてそこから熱を回収する
為の触媒物質で被慢された表面を具備している。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device, in particular a combustion device such as a boiler having one or more gas passages with a heat recovery heat exchanger, in which a heat recovery heat exchanger is provided. The exchanger includes a surface covered with a catalytic material to oxidize the gaseous combustion products and recover heat therefrom.
現在、ボイラ、発電プラント或いは類似型式の炉のよう
な産業用燃焼装置は、それらができるだけ燃料を節約す
るような態様で運転されている。Currently, industrial combustion devices such as boilers, power plants or similar types of furnaces are operated in such a manner that they are as fuel-saving as possible.
このような装置において燃料を節約する主たる方法は、
燃料及び空気比率を厳密に制御する計測操業の下で燃焼
プロセスを管理することである。しかし、いかに精密な
制御系統を使用しても、幾らかの未燃焼燃料ガスがまだ
尚煙突を通して無駄に排棄される。代表的な炉は、過剰
の燃料損失及び（或いは）排煙を防止する為過剰空気を
使用して操業されている。過剰空気を使用することの欠
点は、それが多量の窒素及び酸素を加熱せしめることに
より熱を浪費しまたファン等を駆動するのに追加工木ル
ギー憂必要とすることである。The main way to save fuel in such devices is to
It is the management of the combustion process under metered operations that strictly control the fuel and air ratios. However, no matter how precise the control system is used, some unburned fuel gas is still wasted through the chimney. Typical furnaces are operated with excess air to prevent excessive fuel loss and/or smoke exhaust. The disadvantage of using excess air is that it wastes heat by heating up large amounts of nitrogen and oxygen and requires additional energy to drive fans, etc.
本発明に従えば、燃焼装置には、そのガス通路において
、ガス状燃焼生成物から熱を回収する為それを酸化する
為の触媒物質で被覆された表面を含む熱回収用熱交換器
が設けられる。バーナの下流の広い熱交換表向に触媒層
を形成することにより、未燃焼燃料ガスは燃焼の為活用
されそして発生熱は有用な媒体に伝達され、それにより
燃料を節約しそして大気汚染を軽減する。According to the invention, the combustion device is provided with a heat recovery heat exchanger in the gas passageway comprising a surface coated with a catalytic material for recovering heat from the gaseous combustion products and for oxidizing them. It will be done. By forming a catalyst layer on a wide heat exchange surface downstream of the burner, the unburned fuel gas is utilized for combustion and the generated heat is transferred to a useful medium, thereby saving fuel and reducing air pollution. do.
成る種の物質が酸素の存在下でモして４００”Ｆを越え
る温度においてガス状燃焼生成物を触媒作用を行うこと
が認められた。これら触媒物質の幾つかの例は、白金、
パラジウム及びニッケルである。本発明に従えば、これ
ら触媒物質の一種以上が熱回収用熱交換器の熱交換表向
或いは関連支持表面に直接隣りあって位置づけられる。A variety of materials have been found to catalyze gaseous combustion products in the presence of oxygen at temperatures in excess of 400" F. Some examples of these catalytic materials include platinum,
These are palladium and nickel. According to the invention, one or more of these catalytic materials are positioned directly adjacent to the heat exchange face of the heat recovery heat exchanger or to the associated support surface.
例えば、触媒物質は熱回収装置の関連する熱交換表向に
対する支持体に対して、蒸看、スパッタリング、電気め
っき或いは他の適当な方法により被覆されうる。本発明
はボイラガス通路においで未燃焼燃料ガスに曝翫されろ
過熱器の管或いはその支持体に対するコーティングとし
て特に有用である〇燃焼装置は一般に過剰空気条件の下
で運転されるのを常とするから、燃料は容易に酸化しそ
して生成するエネルギーは熱回収用熱交換器内の流体に
伝達される。罵気或いは蒸附やスパッタリングによる触
媒物質の被覆は非常に薄い層を生成しうるから、投資費
用は低く抑えられ従って構成を経済的に魅力的なものと
する。燃料は火炎着火温度以下の温度令触媒により燃焼
されるから、火炎や爆発の危険はこれら装置において存
在しない。For example, the catalytic material may be coated onto the support for the associated heat exchange surface of the heat recovery device by steaming, sputtering, electroplating or other suitable methods. The present invention is particularly useful as a coating for filter heater tubes or their supports that are exposed to unburned fuel gas in the boiler gas passageway.Combustion devices are generally operated under excess air conditions. The fuel is easily oxidized and the energy produced is transferred to the fluid in the heat recovery heat exchanger. Coating the catalytic material by agitation or vaporization or sputtering can produce very thin layers, which keeps the investment costs low and thus makes the construction economically attractive. Since the fuel is combusted by the catalyst at a temperature below the flame ignition temperature, there is no risk of flame or explosion in these devices.
従って、本発明の目的は、燃焼室と、該燃焼室において
ガス状燃焼生成物な発生する為の手段と、燃焼室に接続
されそして煙道、煙突等に通じる一つ以上のガス通路内
に位置づけられる一つ以上の熱回収装置を含む燃焼装置
において、熱交換器がガス状燃焼生成物から熱を回収す
るべく該ガス状燃焼生成物を酸化する為の触媒物質を関
連して具備していることを特徴とする燃焼装置を提供す
ることである。It is therefore an object of the present invention to provide a combustion chamber, a means for generating gaseous combustion products in the combustion chamber, and a gas passage connected to the combustion chamber and leading to a flue, chimney, etc. A combustion apparatus including one or more heat recovery devices located therein, wherein the heat exchanger is associated with a catalytic material for oxidizing the gaseous combustion products to recover heat from the gaseous combustion products. An object of the present invention is to provide a combustion device characterized by:
本発明の別の目的は、設計が簡単であり、構造が県牢で
ありそして経済的に作製しうる燃焼装置を提供すること
である。Another object of the invention is to provide a combustion device that is simple in design, simple in construction and economical to manufacture.
図面を参照すると、ここに具体化する本発明は、燃焼室
１２を具備するボイラを含む燃焼装置１０を包含する。Referring to the drawings, the invention embodied herein includes a combustion apparatus 10 that includes a boiler having a combustion chamber 12 .
燃焼室１２はガス状燃焼生成物用の垂直の細長い通路１
４に通じている。ガス状燃焼生成物は例えばバーナ１６
により燃焼室において発生する。燃焼室は一般に成る程
度過剰の空気を使用して運転されている。The combustion chamber 12 has a vertical elongated passage 1 for the gaseous combustion products.
4. The gaseous combustion products are e.g. burner 16
occurs in the combustion chamber. Combustion chambers are generally operated with a degree of excess air.
本発明に従えば、過熱器１８．２０及び２２、エコノマ
イザ２４或いは空気加熱器２６等のような一つ以上の熱
回収用熱交換器が燃焼室１２及び垂直ガス通路１４の上
端を始端として伸延する一つ以上の通路手段３０内に位
置づけられている。According to the invention, one or more heat recovery heat exchangers, such as superheaters 18, 20 and 22, economizers 24, or air heaters 26, extend from the upper ends of combustion chamber 12 and vertical gas passages 14. located within one or more passage means 30 that
本発明に従えば、熱回収用熱交換器は、例えば第２図に
示されるように、関連する熱交換管３４の一本以上の表
面周囲に或いはそれに沿っての支持要素に触媒物質の薄
い層を被覆することにより触媒物質を関連的に具備して
いる。好ましい形態ニオイて、触媒物質３２は白金、パ
ラジウム及びニッケルのような触媒物質の薄い層でＷ３
４の周Ｈに被覆される。In accordance with the present invention, a heat recovery heat exchanger includes a thin layer of catalytic material on a support element around or along one or more surfaces of an associated heat exchange tube 34, as shown, for example, in FIG. A catalytic material is associated therewith by coating the layer. In a preferred form, catalytic material 32 is a thin layer of catalytic material such as platinum, palladium and nickel.
The circumference H of 4 is coated.
第１図は、本発明に従う一つ以上の熱回収用熱交換器を
備えるボイラの概略断面図であり、そして第２図は薄い
触媒層で被覆されたエコノマイザ、空気加熱器等の管の
一部断面を示す。
１０：燃焼装置
１２：燃焼室
１４：垂直通路
１６：バーナ
１８．２０．２２：過熱器
２４：エコノマイザ
２６：空気加熱器
３０：通路
３２：管
３４：触媒物質層1 is a schematic cross-sectional view of a boiler with one or more heat recovery heat exchangers according to the invention, and FIG. 2 is a section of a tube of an economizer, air heater, etc. coated with a thin catalyst layer; A cross section is shown. 10: Combustion device 12: Combustion chamber 14: Vertical passage 16: Burner 18.20.22: Superheater 24: Economizer 26: Air heater 30: Passage 32: Tube 34: Catalyst material layer
Claims (1)
する手段、ガス状燃焼生成物排出の為前記燃焼室に接続
される通路手段、該通路手段に設けられる少くとも一つ
の熱回収用熱交換器、及びガス状燃焼生成物から熱を回
収するべく該ガス状燃焼生成物を酸化する為前記熱交換
器と関連して配される触媒物質を包含する燃焼装置。 ２〕 熱交換器が薄い触媒層を具備する管を含んでいる
特許請求の範囲第１項記載の装置。 ３）燃焼装置が蒸気発生器であり、熱回収用熱交換器が
触媒物質を具備する過熱器から成る特許請求の範囲第１
項記載の装置。 ４）燃焼装置が蒸気発生器であり、熱回収用熱交換器が
触媒物質を具備するエコノマイザである特許請求の範囲
第１項記載の装置。 ５〕 燃焼装置が蒸気発生器であり、熱回収用熱交換器
が触媒物質を具備する空気加熱器である特許請求の範囲
第１項記載の装置。 ６ノ 燃焼装置が垂直に細長いガス通路とその端から伸
延しそしてガス通路手段を構成する複数の別個のガス通
路を具備するボイラから成り、前記一つ以上の追加ガス
通路が熱回収用熱交換器を構成する過熱器、エコノマイ
ザ及び空気加熱器を含み、これらすべてが熱交換管を装
備しモして骸骨に触媒物質が被覆される特許請求の範囲
第１項記載の装置。[Scope of Claims] 1) A combustion chamber, means for generating gaseous combustion products in the combustion chamber, passage means connected to the combustion chamber for discharging the gaseous combustion products, and a vent provided in the passage means. a combustion device including a heat recovery heat exchanger and a catalytic material disposed in association with the heat exchanger for oxidizing the gaseous combustion products to recover heat from the gaseous combustion products; . 2) The apparatus of claim 1, wherein the heat exchanger comprises tubes provided with a thin catalyst layer. 3) Claim 1 in which the combustion device is a steam generator and the heat recovery heat exchanger comprises a superheater comprising a catalytic material.
Apparatus described in section. 4) The apparatus according to claim 1, wherein the combustion device is a steam generator and the heat recovery heat exchanger is an economizer comprising a catalytic material. 5) The apparatus according to claim 1, wherein the combustion device is a steam generator and the heat recovery heat exchanger is an air heater comprising a catalytic material. 6. The combustion device comprises a boiler comprising a vertically elongated gas passage and a plurality of separate gas passages extending from the ends thereof and forming gas passage means, said one or more additional gas passages being heat exchangers for heat recovery. 2. The apparatus of claim 1, comprising a superheater, an economizer and an air heater, all of which are equipped with heat exchange tubes and whose skeleton is coated with a catalytic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39456482A | 1982-07-02 | 1982-07-02 | |
| US394564 | 1982-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5918302A true JPS5918302A (en) | 1984-01-30 |
Family
ID=23559489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58114458A Pending JPS5918302A (en) | 1982-07-02 | 1983-06-27 | Combustion apparatus with catalyst type heat exchanger for heat recovery |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0099658A3 (en) |
| JP (1) | JPS5918302A (en) |
| AU (1) | AU1623583A (en) |
| CA (1) | CA1192183A (en) |
| IN (1) | IN161034B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009526964A (en) * | 2006-02-16 | 2009-07-23 | シーメンス アクチエンゲゼルシヤフト | boiler |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071116A (en) * | 1997-04-15 | 2000-06-06 | American Air Liquide, Inc. | Heat recovery apparatus and methods of use |
| US7210469B1 (en) * | 2005-10-24 | 2007-05-01 | International Engine Intellectual Property Company, Llc | Oxidation catalyst coating in a heat exchanger |
| KR20170129844A (en) * | 2015-03-23 | 2017-11-27 | 지멘스 악티엔게젤샤프트 | Steam generator |
| CN104896470B (en) * | 2015-06-19 | 2017-12-01 | 中国华能集团清洁能源技术研究院有限公司 | A kind of pulverized-coal fired boiler of ultralow discharged nitrous oxides |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB771919A (en) * | 1953-12-14 | 1957-04-10 | Gibbons Askam Ltd | Improvements relating to crematorium furnaces |
| CH336150A (en) * | 1954-11-25 | 1959-02-15 | Huet Andre | Process for obtaining, during the production of steam using a steam generating installation, an exothermic reaction in the gases licking the exchange surface of a heat exchanger forming part of said installation |
| CA1092910A (en) * | 1976-07-27 | 1981-01-06 | Ko'hei Hamabe | Boiler apparatus containing denitrator |
| DE2658208A1 (en) * | 1976-12-22 | 1978-07-06 | Parsons Co Ralph M | Removing sulphur and nitrogen oxides from flue gases - by redn. to hydrogen sulphide and innocuous nitrogen cpds. |
| GB2037607B (en) * | 1978-12-13 | 1983-05-11 | Johnson Matthey Co Ltd | Heat exchangers |
-
1983
- 1983-06-23 EP EP83303626A patent/EP0099658A3/en not_active Withdrawn
- 1983-06-24 AU AU16235/83A patent/AU1623583A/en not_active Abandoned
- 1983-06-27 JP JP58114458A patent/JPS5918302A/en active Pending
- 1983-06-30 CA CA000431557A patent/CA1192183A/en not_active Expired
- 1983-06-30 IN IN810/CAL/83A patent/IN161034B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009526964A (en) * | 2006-02-16 | 2009-07-23 | シーメンス アクチエンゲゼルシヤフト | boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1192183A (en) | 1985-08-20 |
| IN161034B (en) | 1987-09-19 |
| EP0099658A2 (en) | 1984-02-01 |
| AU1623583A (en) | 1984-01-05 |
| EP0099658A3 (en) | 1984-05-30 |
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